Our take
Optoma's official distance calculator identifies the DX346 with a 4:3 aspect ratio, a 3,000 brightness rating, and a 1.95–2.15 throw ratio. An Optoma-authored range brochure copy hosted by a distributor lists native XGA 1024 × 768 and 1.1× manual zoom. Together, those sources describe a traditional projector whose room fit can be checked before purchase. The brightness figure is not labeled ANSI in the saved sources, so it should remain separate from method-labeled output. The model is a possible office or classroom presentation fit when the screen and lens distance suit 4:3 XGA, but exact lamp condition, ports, and unit package need seller verification.
A measured traditional presentation setup with enough depth for its 1.95–2.15 throw range.
Avoid it when a short room, widescreen native format, Full HD detail, or a verified ANSI brightness threshold is essential.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Optoma's calculator provides an exact DX346 1.95–2.15 throw range and 4:3 image format.
- The manufacturer-authored brochure copy identifies native XGA 1024 × 768 and 1.1× zoom.
- A model-specific source makes the lens calculation more concrete than a generic listing claim.
What to weigh up
- The 3,000 brightness figure is not labeled ANSI in either checked source.
- A 1.95–2.15 throw ratio needs more room depth than many short-throw installations.
- The brochure is distributor-hosted, and no current unit condition or offer has been verified.
The key details
| Model covered | DX346 |
|---|---|
| Image format | Native XGA 1024 × 768 and 4:3 aspect in an Optoma-authored brochure |
| Rated light output | 3,000 brightness rating; neither checked source labels it ANSI |
| Placement | 1.95–2.15 throw ratio from Optoma's calculator and 1.1× manual zoom |
Performance figures are manufacturer claims. Source checked October 10, 2026. Regional models and included accessories can differ.
What the features mean for you
Keep both model-specific locators in view
Optoma's official distance calculator identifies DX346 and gives its aspect, brightness wording, and throw range. The native-resolution detail comes from an Optoma-authored range brochure copy hosted by a distributor. That split should stay visible: the calculator is the direct manufacturer locator, while the brochure is maker-authored but not hosted on Optoma's domain. Together they support model identity and selected specifications, but they do not justify transferring facts from other Optoma X-series products. Check the exact model name and any regional suffix on the chassis before buying a used projector or ordering a lamp.
Match 4:3 XGA to the room's content
The brochure identifies native XGA 1024 × 768 and the calculator lists 4:3 aspect. This shape can work with older slides and computer material designed for a squarer screen. Widescreen sources may show unused areas or require scaling, and XGA offers less fine detail than WXGA or Full HD. A presentation room with text-heavy material should test a representative slide at the intended screen size. The image format is one practical reason to consider the DX346, but it does not tell a buyer how bright a particular used lamp will be or whether the original room's screen and cabling are still available.
Measure the longer throw range
Optoma's calculator gives a 1.95–2.15 throw ratio, and the brochure copy lists 1.1× manual zoom. The ratio helps determine whether the projector can fill the target screen from a room's available depth. It is a conventional, relatively long placement, not an ultra-short-throw design. Zoom provides only a small adjustment around the chosen position. Measure lens-to-screen distance, image width, mount offset, and ceiling clearance before deciding. Do not assume a digital keystone setting can make an unsuitable lens position equivalent to a shorter throw or optical shift.
Do not convert the 3,000 figure to ANSI
Optoma's calculator gives a 3,000 brightness rating but does not label it ANSI, and the saved brochure copy does not supply a comparable method. Keep the maker's wording as a specification rather than using it for a hard ANSI threshold. Brightness depends on mode, image size, room light, screen, lamp hours, and optical condition. A used DX346 may have materially different output from the model's original rating. Ask for a lamp-hour display and view a test image in conditions similar to the intended room. If standardized brightness is important, request an exact-model source that states its measurement basis.
Verify source connections and used-unit condition
The candidate packet does not provide a complete connection list, so buyers should consult the full DX346 manual rather than assume ports from a neighboring Optoma model. Confirm that the exact computer or player output works with the offered unit, and check how audio reaches a room sound system. Inspect focus across the frame, color uniformity, lamp hours, fan noise, lens, connectors, remote, and required power cable. The calculator establishes a model-level optical range, not the present working condition or included accessories. The historical row ASIN is not proof of a current Amazon product page; use a tagged search for Optoma DX346 and verify the model label in the offer.
What else to compare
Before you buy
What native resolution is documented for DX346?
An Optoma-authored range brochure copy lists native XGA 1024 × 768; the official calculator lists the 4:3 aspect.
Is the calculator's 3,000 brightness figure ANSI?
The checked Optoma calculator does not label the number ANSI, so it cannot satisfy a verified ANSI threshold.
How much room depth should I plan?
Optoma's calculator lists a 1.95–2.15 throw ratio; use screen width and the full calculator for the exact distance.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Optoma official distance calculator identifying DX346 ↗ — checked October 10, 2026.
- Optoma official distance calculator identifying DX346 aspect, brightness wording, and throw ratio ↗ — checked October 10, 2026.
- Optoma-authored range brochure copy listing DX346 native XGA and zoom ↗ — checked October 10, 2026.
The decision
Optoma's official distance calculator identifies the DX346 with a 4:3 aspect ratio, a 3,000 brightness rating, and a 1.95–2.15 throw ratio. An Optoma-authored range brochure copy hosted by a distributor lists native XGA 1024 × 768 and 1.1× manual zoom. Together, those sources describe a traditional projector whose room fit can be checked before purchase. The brightness figure is not labeled ANSI in the saved sources, so it should remain separate from method-labeled output. The model is a possible office or classroom presentation fit when the screen and lens distance suit 4:3 XGA, but exact lamp condition, ports, and unit package need seller verification.
Is it the right fit?
Check the exact model and today’s offers on Amazon.